stimpson



2 Sheets-Sheet 1.

(No Model.)

B, B. 'STIMPSON. EYELETING MAGHINB.

Patented Aug. 1, 189 3.

INVENTOR:

WITNESSES:

(No Model.)

t e e m e e 2 M 0 S w A MM I Tm H 5 BL H .33

Patented Aug. l l893.

INVENSTOR:

BUG/I) WITNESSES:

Attorney.

UNITED STATES PATENT OFFICE.

EDI/VIN B. STIMPSON, OF NEW YORK, N. Y.

EYELETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 502,327, dated August1, 1893.

Application filed October 14, 1892- Serial No. 448,850- (No model.)

T0 at whom it may concern.-

Be it known that I, EDWIN B. STIMPSON, a citizen of the United States,and a resident of the city, county, and State of New York, have inventedcertain new and useful Improvements in Eyeleting-Machines, of which thefollowing is a specification.

My invention relates to that class of eyeleting machines wherein theeyelet-box or holder, and the eyelet-road on which it is mounted, retireat each working movement of the machine and return to their normalpositions when the plunger is retracted. In this class of eyeletingmachines the plunger moves up ward to the stationary anvil above, andwhen it starts on its upward movement it finds the eyelet which is atthe lower extremity of the eyeletroad, in its path. The yielding pointon the plunger passes upward through the eyelet and the latter isdisengaged from the spring detent-finger on the eyelet-road by thewithdrawal of the latter. When the plunger is retracted the eyelet-roadreturns toits first position, another eyelet having taken the place ofthe one removed.

My invention relates in part to the mechanism connected with theoperation of the eyelet-road, whereby the latter isoaused to advance andretire at the proper times, and in part to the construction andarrangement of the spring detent-finger at the lower extremity of theeyelet-road.

The invention will be fully described hereinafter and its novel featurescarefullydefined in the claims. g

In the drawings which serve to illustrate my invention an eyeletingmachine embodying my improvements is shown.

Figure 1 is a side elevation of the machine with its moving parts intheir normal position, and Fig.2 is a similar view showing the parts inanother position. Fig. 3 shows the lower extremity of the eyelet-road inplan and side elevation on a larger scale than the principal views.These detached views illustrate the improvement in the springdetent-finger.

A represents the frame of the machine and A, its base by which it may besecured to a table.

In the upper arm of the machine is set the anvil, a, and below the anvilis mounted,in a

suitable vertical guide-way in the frame, the sliding plunger 1). Theplunger is provided, as usual, with a yielding point, b, on which theeyelet is received and guided on its way up to the anvil.

g B, is the eyelet-box or holder, and O, the eyelet-road to the upperend of which the box B is attached. The eyelet box contains a vibratingbrush which is actuated through the medium of a rod 0, as usual, andserves to push the eyelets out from the box into the channel in theinclined eyelet-road, down which they slide by gravity to the deliverypoint.

All of the above-described instrumentalities are common in this class ofmachines. The eyelet-road C has a web, (3*, on its under side, which hasin it slots, 0*, to form guide-bearings ortracks for stud-rollers, c,mounted rotatively in brackets, 0 on the frame. In its movements to andfro, when advancing and retiring, the eyelet-road rides on these rollersc.

D is the main operating lever, which is fulcrumed on the frame at d. Atits front end it is coupled by a pin and slot to the lower end of theplunger 1), and at its other end it is coupled to a spring, d", whichserves to retract the plunger. The lever D is usually operated by atreadle, not shown, the rod of which will be attached to the lever at d.Screws d*, in the lever D, serve to limit the rocking movements of thelatter by'impinging on the base plate A.

Movement is imparted to the eyelet-road from the operating lever D,through the medium of a pair of intermediate toggle links and a couplinglink.

E is ashort toggle link pivoted on the frame at e, and F is a longerlink, coupled to the free end of link E at f, and having in its otherend a slot, f, which is engaged by a stud, pin, or screw, f set in a lugc on the eyelet-road. A link G is coupled at one end to the operatinglever D at g, and at the other end to the shorter linkEat a pointbetween the knuckle of the toggle and the point e.

The operation of the last described mechanism is as follows: When therear-end of the operating lever is drawn down and the plunger 12 drivenupward, the link G acts on ICO the toggle to move the longer link Fobliquely upward longitudinally, but the eyelet-road will not at firstpartake of this movement owing to the slotf' therein playing over thepin This slot allows the plunger 7) to rise and its point to engage theeyelet in its path; but as soon as this engagement takes place playallowed by the slot in the link F will have been exhausted and the linkwill then, move the eyelet-road quickly back and out of the Way,detaching itself from the eyelet on the point of the plunger, whichlatter moves upward to the anvil, where the eyelet is set and clinched.This last position of the parts is illustrated in Fig. 2.

It will be noted that the links E, F and G are so set with respectto-each other and to the operating lever and eyelet-road, that the firstretiring movement imparted to the eyelet-road is quite abrupt and quick,but as the toggle straightens out the movement is slower. This serves todetach the terminal eyelet the more readily and also to impart a morevigorous and abrupt movement to the brush in the box B. When thepressure is removed from the treadle and operating lever and the springd is permitted to retract the plunger, the slot f again comes into playto permit the point of the plunger to descend before the eyelet-road isadvanced to the position seen in Fig. '1.

In order to cause the eyelet-road to remain steady in its two positionsshown and particularly to maintain it in the retired and elevatedposition seen in Fig. 2, against the action of gravity, I provide aspring frictionpadfi, ranged to press on some part of the road. Asherein shown this pad comprises a leaf spring secured at one end to theframe and having at its other end a pad of leather or like materialarranged to bear on the web on the eyelet-road.

Fig. 3 illustrates the improved construction of the spring-finger whichretains the eyelets in place on the road. Heretofore, so far as I amaware, this finger, or retainer has been made in the form of aleverfulcrumed on the side of the road and held up in place elastically bymeans of a light coil spring arranged under the tail of thelever andheld and guided by a screw. As the retaining finger should havedurability to withstand the strain of constant use and should be compactso as to avoid disarrangement from contact with the materials on whichthe eyelets are set, I mount in a recess in the thickened wall 0 of theeyelet-road, a finger or latch, 71, which is pivoted at i; and I providea leaf spring, j, secured to the road at f. This spring conforms to theconvex contour of the surface on which it rests and its free end bearson the back of the finger 2', as shown. This construction provides adurable and reliable detent having no salient points for the material orwork to catch on and avoids the use of a spiral spring. The finger i mayhavea shoulder, 2' to screen the free extremity of the leaf spring andthus prevent it from catching in the work or in the clothing of theattendant.

While usually denominated eyeleting machines, this kind of machine isalso employed for setting and clinching other sheet metal fasteners andthe like. Only slight changes are required to adapt it to this latterwork.

Having thus described my invention, I claim- 1. In a machine for settingeyelets and the like, the combination with the movable eyelet-road,adapted to advance and retire, of the operating lever, mechanism betweenthe eyelet-road and operating lever whereby the latter moves the former,in both directions and a friction pad, h, arranged to bear on some partof the eyelet-road and hold it against shifting its position by gravitywhen free from the control of the operating lever.

2. In a machine for setting eyelets and the like, the combination withthe frame, the plunger, the longitudinally movable eyelet-road, and theoperating lever coupled to the plunger, of mechanism between andconnecting the operating lever and eyelet-road, said mechanismcomprising a toggle having one of its links coupled to the frame and theother to the eyelet-road, and a link connecting the operatin g leverwith one of the toggle links, said intermediate mechanism having a slotat one of its couplings to permit of some independent movement of theoperating lever, as set forth.

3. In a machine for setting eyelets andthe like, the'combination withthe frame, the plunger, the eyelet-road, and the operating lever,coupled to the plunger, of the intermediate mechanism between andconnecting the operating lever and eyelet-road said intermediatemechanism comprising the toggle-links coupled at one extremity to theframe and at the other extremity to the eyelet-road by a slottedconnection, and the link G, coupled at one end to the operating leverand at the other end to that link of the toggle which is coupled to theframe, substantially as and for the purpose set forth.

4. In a machine for setting eyelets and the like, the combination withthe frame, the plunger mounted therein, the movable eyelet-road mountedon the frame, and the operating lever fulcrumed on the frame and coupledto the plunger, of the mechanism connecting the operating lever with theeyelet-road, said mechanism comprising the shorter toggle link E,coupled at one end to the frame, the longer toggle link F, coupled by aslotted connection to the eyelet-road, and the link G, coupled at oneend to that arm of the operating lever which is coupled to the plunger,and at the other end to the toggle link E, the knuckle of the togglebeing directed toward the operating lever, as shown.

5. In a machine for setting eyelets, the combination with the plunger(2, provided with a point b which takes the eyelet from the road, theeyelet-road, and mechanism for drawing away the eyelet-road as theplunger rises, of means for retaining the eyelets in place, nor- 5mally, but permitting the lowermost eyelet to be forcibly displaced,said means comprising a latch 2', pivotally mounted at z" in theeyelet-road at its extreme, forked end, with its point extending partway into the path of the [O eyelets, and the leaf spring j, fixed to theeyelet-road and bearing at its free end on the back of said latch,whereby the withdrawal of the eyelet-road is permitted to disengage theeyelet, as set forth.

In witness whereof I have hereunto signed 1 5 my name in the presence oftwo subscribing witnesses. 1

ED'WIN B. STIMPSON.

Witnesses:

HERBERT BLossoM, J AS. KING DUFFY.

